What is diagonal relation of elements in periodic tabespetially of lithium andmagnesium plz explain in detail?

Question

answer required for B.Sc level

Answer 1

In addition to horizontal and vertical trends, there is a diagonal relationship between elements such as Li and Mg, Be and Al, B and Si, that have an adjacent upper left/lower right relative location in the periodic table.
These pairs of elements have similar size and electronegativity, resulting in similar properties.

Diagonal relationships occur because of the directions in the trends of various properties as you move across or down the periodic table. Many of the chemical properties of an element are related to the size of the atom. You may have learned in your chemistry class that the trends in size in the periodic table are as follows:

Size decreases moving left to right across a row and increases moving right to left
Size decreases moving up a period and increases moving down
I'll review the reasons for these trends below, but for now, let's look at what happens if you compare two atoms in a diagonal relationship.
Li Be
Na Mg

Comparing Li to Mg, as in your example, as you go down the column the size increases, then as you go across the row the size decreases. Thus it might not be surprising that the size of Mg atoms is about the same as that of Li atoms.

Why does this matter? It matters because a great number of important chemical properties depend on the size of an atom. Most important, perhaps, is that the size of an atom influences how strongly the outer electrons are held. A great deal of chemistry depends on this, because chemical reactions depend on the transfer or sharing of electrons.

If you look at the sizes of the atoms arranged in the periodic table, you will see that each atom is about the same size as the element one row down and one column to the right.

More prominent between period (row) 2 element and period 3 element, one group to the right


Example
Consider: Li vs Mg - similar size of Li+ vs Mg2+ (0.76 vs 0.72 Å) and similar properties (e.g., both give nitrides with N2, salts with similar solubilities and thermal stabilities, and significant covalency in their bonds. Origin of similarities again due to the high charge-to-size ratios of Li+ and Mg2+. Mg is bigger than Li, so Mg2+ and Li+ end up being similar.

Answer 2

Lithium through Nirvana Lithium through Evanescence Sulfur through Slipknot Petrol & Chlorine through Silverchair Iron guy through Black Sabbath Iron Head through Rob Zombie (featuring Ozzy Osbourne) Silver And chilly through A.F.I.

Answer 3

The angle of the dangle is in proportion to the heat of the meat

Answer 4

maybe you need to figure it out on your own